summaryrefslogtreecommitdiffstats
path: root/target/linux/ar71xx/image/lzma-loader/src/Makefile
diff options
context:
space:
mode:
authorjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-12-05 14:52:25 +0000
committerjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-12-05 14:52:25 +0000
commit057c5990c9a0ef67c3f4dcfcf026cf41ccaec881 (patch)
tree17a433e6227a99a23927df83e369c2fd81b8aab9 /target/linux/ar71xx/image/lzma-loader/src/Makefile
parentf5ac3a13ec9b452ed357ef95299f26549945d1c7 (diff)
ar71xx: add lzma loader
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29443 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar71xx/image/lzma-loader/src/Makefile')
-rw-r--r--target/linux/ar71xx/image/lzma-loader/src/Makefile94
1 files changed, 94 insertions, 0 deletions
diff --git a/target/linux/ar71xx/image/lzma-loader/src/Makefile b/target/linux/ar71xx/image/lzma-loader/src/Makefile
new file mode 100644
index 000000000..c5965c9bd
--- /dev/null
+++ b/target/linux/ar71xx/image/lzma-loader/src/Makefile
@@ -0,0 +1,94 @@
+#
+# Makefile for the LZMA compressed kernel loader for
+# Atheros AR7XXX/AR9XXX based boards
+#
+# Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
+#
+# Some parts of this file was based on the OpenWrt specific lzma-loader
+# for the BCM47xx and ADM5120 based boards:
+# Copyright (C) 2004 Manuel Novoa III (mjn3@codepoet.org)
+# Copyright (C) 2005 Mineharu Takahara <mtakahar@yahoo.com>
+# Copyright (C) 2005 by Oleg I. Vdovikin <oleg@cs.msu.su>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 as published
+# by the Free Software Foundation.
+#
+
+LOADADDR :=
+LZMA_TEXT_START := 0x80a00000
+LOADER_DATA :=
+CONFIG_BOARD :=
+FLASH_OFFS :=
+FLASH_MAX :=
+
+CC := $(CROSS_COMPILE)gcc
+LD := $(CROSS_COMPILE)ld
+OBJCOPY := $(CROSS_COMPILE)objcopy
+OBJDUMP := $(CROSS_COMPILE)objdump
+
+BIN_FLAGS := -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
+
+CFLAGS = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
+ -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 \
+ -mno-abicalls -fno-pic -ffunction-sections -pipe -mlong-calls \
+ -fno-common -ffreestanding -fhonour-copts \
+ -mabi=32 -march=mips32r2 \
+ -Wa,-32 -Wa,-march=mips32r2 -Wa,-mips32r2 -Wa,--trap
+CFLAGS += -D_LZMA_PROB32
+
+ASFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+LDFLAGS = -static --gc-sections -no-warn-mismatch
+LDFLAGS += -e startup -T loader.lds -Ttext $(LZMA_TEXT_START)
+
+O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
+
+OBJECTS := head.o loader.o cache.o board.o printf.o LzmaDecode.o
+
+ifneq ($(strip $(LOADER_DATA)),)
+OBJECTS += data.o
+CFLAGS += -DLZMA_WRAPPER=1 -DLOADADDR=$(LOADADDR)
+endif
+
+ifneq ($(strip $(KERNEL_CMDLINE)),)
+CFLAGS += -DCONFIG_KERNEL_CMDLINE='"$(KERNEL_CMDLINE)"'
+endif
+
+ifneq ($(strip $(FLASH_OFFS)),)
+CFLAGS += -DCONFIG_FLASH_OFFS=$(FLASH_OFFS)
+endif
+
+ifneq ($(strip $(FLASH_MAX)),)
+CFLAGS += -DCONFIG_FLASH_MAX=$(FLASH_MAX)
+endif
+
+all: loader.bin
+
+# Don't build dependencies, this may die if $(CC) isn't gcc
+dep:
+
+install:
+
+%.o : %.c
+ $(CC) $(CFLAGS) -c -o $@ $<
+
+%.o : %.S
+ $(CC) $(ASFLAGS) -c -o $@ $<
+
+data.o: $(LOADER_DATA)
+ $(LD) -r -b binary --oformat $(O_FORMAT) -T lzma-data.lds -o $@ $<
+
+loader.bin: loader.elf
+ $(OBJCOPY) $(BIN_FLAGS) $< $@
+
+loader.elf: $(OBJECTS)
+ $(LD) $(LDFLAGS) -o $@ $(OBJECTS)
+
+mrproper: clean
+
+clean:
+ rm -f *.elf *.bin *.o
+
+
+